Patents by Inventor Leslie Clark Pike

Leslie Clark Pike has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Surface treating compositions
    Patent number: 4049873
    Abstract: Organopolysiloxane release composition based on curable linear organopolysiloxanes modified by the incorporation of a copolymer containing a proportion of Me(R.sup.1 Q)SiO groups in which at least one R.sup.1 group has at least 6 carbon atoms and Q is O or S, with or without a proportion of MeRSiO groups in which at least one R group has at least 4 carbon atoms, and substrates treated therewith.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: September 20, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Norman Geoffrey Creasey, Leslie Clark Pike
  • Organopolysiloxane compositions
    Patent number: 4042643
    Abstract: Diorganopolysiloxane release compositions, the release properties of which are modified by the incorporation of a copolymer of average general formulaA.sub.3 SiO(Me.sub.2 SiO).sub.x (MeRSiO).sub.y (MeHSiO).sub.z SiA.sub.3where A and R are selected from specified groups x and z are numbers from 0-950, y is a number from 1 to 1000, x + y + z is not less than 20 and not greater than 1000, y/(x+y+z) is not less than 0.05 and the total ratio of R:Si in the composition is not less than 1:2000.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: August 16, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Norman Geoffrey Creasey, Leslie Clark Pike
  • Surface treating compositions
    Patent number: 3941856
    Abstract: Compositions for surface treatments to give lower release values comprising 100 parts by weight of a hydroxy-containing diorganopolysiloxane, 1 to 20 parts by weight of an organohydrogenpolysiloxane, 0.05 to less than 20 parts by weight of an aminoalkoxy silicon compound, 1 to 20 parts by weight of an organotin compound and, if desired, up to 10 parts by weight of a non-amino-containing alkoxy silicon compound.
    Type: Grant
    Filed: January 29, 1974
    Date of Patent: March 2, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Norman Geoffrey Creasey, Leslie Clark Pike